Home / 402,138.53-554,964.77-230,084.81

Finding the Fourth Proportional to 402,138.53, 554,964.77 and 230,084.81

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Solution

The fourth proportional to 402,138.53, 554,964.77 and 230,084.81 is: 317,524.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,138.53 : 554,964.77 = 230,084.81 : x
  2. Step 2: Convert to fraction form
    402,138.53/554,964.77 = 230,084.81/x
  3. Step 3: Cross multiply
    402,138.53x = 554,964.77 × 230,084.81
  4. Step 4: Simplify right side
    402,138.53x = 127,688,961,462.53
  5. Step 5: Solve for x
    x = 127,688,961,462.53/402,138.53
  6. Step 6: Final answer
    x = 317,524.82

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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.