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Finding the Fourth Proportional to 424,058.88, 636,088.32 and 157,812.48

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Solution

The fourth proportional to 424,058.88, 636,088.32 and 157,812.48 is: 236,718.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,058.88 : 636,088.32 = 157,812.48 : x
  2. Step 2: Convert to fraction form
    424,058.88/636,088.32 = 157,812.48/x
  3. Step 3: Cross multiply
    424,058.88x = 636,088.32 × 157,812.48
  4. Step 4: Simplify right side
    424,058.88x = 100,382,675,278.23
  5. Step 5: Solve for x
    x = 100,382,675,278.23/424,058.88
  6. Step 6: Final answer
    x = 236,718.72

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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.