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Finding the Third Proportional to 157,920,306.75 and 245,492,339.63

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Solution

The third proportional to 157,920,306.75 and 245,492,339.63 is: 381,625,960.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,920,306.75 : 245,492,339.63 = 245,492,339.63 : x
  2. Step 2: Convert to fraction form
    157,920,306.75/245,492,339.63 = 245,492,339.63/x
  3. Step 3: Cross multiply
    157,920,306.75x = 245,492,339.63 × 245,492,339.63
  4. Step 4: Simplify right side
    157,920,306.75x = 60,266,488,814,556,344
  5. Step 5: Solve for x
    x = 60,266,488,814,556,344/157,920,306.75
  6. Step 6: Final answer
    x = 381,625,960.93

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.