Home / 287,948.40-397,366.08-158,888.04

Finding the Fourth Proportional to 287,948.40, 397,366.08 and 158,888.04

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Solution

The fourth proportional to 287,948.40, 397,366.08 and 158,888.04 is: 219,264.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,948.40 : 397,366.08 = 158,888.04 : x
  2. Step 2: Convert to fraction form
    287,948.40/397,366.08 = 158,888.04/x
  3. Step 3: Cross multiply
    287,948.40x = 397,366.08 × 158,888.04
  4. Step 4: Simplify right side
    287,948.40x = 63,136,717,613.68
  5. Step 5: Solve for x
    x = 63,136,717,613.68/287,948.40
  6. Step 6: Final answer
    x = 219,264.00

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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.