Home / 457,342.20-631,124.10-253,389.06

Finding the Fourth Proportional to 457,342.20, 631,124.10 and 253,389.06

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Solution

The fourth proportional to 457,342.20, 631,124.10 and 253,389.06 is: 349,672.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,342.20 : 631,124.10 = 253,389.06 : x
  2. Step 2: Convert to fraction form
    457,342.20/631,124.10 = 253,389.06/x
  3. Step 3: Cross multiply
    457,342.20x = 631,124.10 × 253,389.06
  4. Step 4: Simplify right side
    457,342.20x = 159,919,942,442.35
  5. Step 5: Solve for x
    x = 159,919,942,442.35/457,342.20
  6. Step 6: Final answer
    x = 349,672.40

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1.5x scale

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.