Home / 302,814.38-454,223.28-78,159.45

Finding the Fourth Proportional to 302,814.38, 454,223.28 and 78,159.45

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Solution

The fourth proportional to 302,814.38, 454,223.28 and 78,159.45 is: 117,239.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,814.38 : 454,223.28 = 78,159.45 : x
  2. Step 2: Convert to fraction form
    302,814.38/454,223.28 = 78,159.45/x
  3. Step 3: Cross multiply
    302,814.38x = 454,223.28 × 78,159.45
  4. Step 4: Simplify right side
    302,814.38x = 35,501,841,742.00
  5. Step 5: Solve for x
    x = 35,501,841,742.00/302,814.38
  6. Step 6: Final answer
    x = 117,239.62

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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.