Home / 282,688.21-390,132.89-169,508.53

Finding the Fourth Proportional to 282,688.21, 390,132.89 and 169,508.53

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Solution

The fourth proportional to 282,688.21, 390,132.89 and 169,508.53 is: 233,935.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,688.21 : 390,132.89 = 169,508.53 : x
  2. Step 2: Convert to fraction form
    282,688.21/390,132.89 = 169,508.53/x
  3. Step 3: Cross multiply
    282,688.21x = 390,132.89 × 169,508.53
  4. Step 4: Simplify right side
    282,688.21x = 66,130,852,688.55
  5. Step 5: Solve for x
    x = 66,130,852,688.55/282,688.21
  6. Step 6: Final answer
    x = 233,935.66

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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.