Home / 287,948.49-397,366.26-158,888.15

Finding the Fourth Proportional to 287,948.49, 397,366.26 and 158,888.15

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Solution

The fourth proportional to 287,948.49, 397,366.26 and 158,888.15 is: 219,264.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,948.49 : 397,366.26 = 158,888.15 : x
  2. Step 2: Convert to fraction form
    287,948.49/397,366.26 = 158,888.15/x
  3. Step 3: Cross multiply
    287,948.49x = 397,366.26 × 158,888.15
  4. Step 4: Simplify right side
    287,948.49x = 63,136,788,831.28
  5. Step 5: Solve for x
    x = 63,136,788,831.28/287,948.49
  6. Step 6: Final answer
    x = 219,264.18

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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.