Home / 347,981.40-480,445.70-267,264.63

Finding the Fourth Proportional to 347,981.40, 480,445.70 and 267,264.63

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Solution

The fourth proportional to 347,981.40, 480,445.70 and 267,264.63 is: 369,002.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,981.40 : 480,445.70 = 267,264.63 : x
  2. Step 2: Convert to fraction form
    347,981.40/480,445.70 = 267,264.63/x
  3. Step 3: Cross multiply
    347,981.40x = 480,445.70 × 267,264.63
  4. Step 4: Simplify right side
    347,981.40x = 128,406,140,909.27
  5. Step 5: Solve for x
    x = 128,406,140,909.27/347,981.40
  6. Step 6: Final answer
    x = 369,002.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.