Home / 282,748.50-390,192.93-161,929.76

Finding the Fourth Proportional to 282,748.50, 390,192.93 and 161,929.76

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Solution

The fourth proportional to 282,748.50, 390,192.93 and 161,929.76 is: 223,463.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,748.50 : 390,192.93 = 161,929.76 : x
  2. Step 2: Convert to fraction form
    282,748.50/390,192.93 = 161,929.76/x
  3. Step 3: Cross multiply
    282,748.50x = 390,192.93 × 161,929.76
  4. Step 4: Simplify right side
    282,748.50x = 63,183,845,557.63
  5. Step 5: Solve for x
    x = 63,183,845,557.63/282,748.50
  6. Step 6: Final answer
    x = 223,463.06

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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.