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Finding the Fourth Proportional to 508,312.35, 762,247.04 and 171,290.18

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Solution

The fourth proportional to 508,312.35, 762,247.04 and 171,290.18 is: 256,860.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,312.35 : 762,247.04 = 171,290.18 : x
  2. Step 2: Convert to fraction form
    508,312.35/762,247.04 = 171,290.18/x
  3. Step 3: Cross multiply
    508,312.35x = 762,247.04 × 171,290.18
  4. Step 4: Simplify right side
    508,312.35x = 130,565,432,686.07
  5. Step 5: Solve for x
    x = 130,565,432,686.07/508,312.35
  6. Step 6: Final answer
    x = 256,860.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.