Home / 287,929.20-432,088.20-161,569.20

Finding the Fourth Proportional to 287,929.20, 432,088.20 and 161,569.20

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Solution

The fourth proportional to 287,929.20, 432,088.20 and 161,569.20 is: 242,462.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,929.20 : 432,088.20 = 161,569.20 : x
  2. Step 2: Convert to fraction form
    287,929.20/432,088.20 = 161,569.20/x
  3. Step 3: Cross multiply
    287,929.20x = 432,088.20 × 161,569.20
  4. Step 4: Simplify right side
    287,929.20x = 69,812,144,803.44
  5. Step 5: Solve for x
    x = 69,812,144,803.44/287,929.20
  6. Step 6: Final answer
    x = 242,462.89

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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.