Home / 282,723.04-390,158.64-155,411.68

Finding the Fourth Proportional to 282,723.04, 390,158.64 and 155,411.68

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Solution

The fourth proportional to 282,723.04, 390,158.64 and 155,411.68 is: 214,468.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,723.04 : 390,158.64 = 155,411.68 : x
  2. Step 2: Convert to fraction form
    282,723.04/390,158.64 = 155,411.68/x
  3. Step 3: Cross multiply
    282,723.04x = 390,158.64 × 155,411.68
  4. Step 4: Simplify right side
    282,723.04x = 60,635,209,708.92
  5. Step 5: Solve for x
    x = 60,635,209,708.92/282,723.04
  6. Step 6: Final answer
    x = 214,468.58

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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.