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Finding the Fourth Proportional to 509,030.70, 763,351.65 and 153,926.70

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Solution

The fourth proportional to 509,030.70, 763,351.65 and 153,926.70 is: 230,831.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,030.70 : 763,351.65 = 153,926.70 : x
  2. Step 2: Convert to fraction form
    509,030.70/763,351.65 = 153,926.70/x
  3. Step 3: Cross multiply
    509,030.70x = 763,351.65 × 153,926.70
  4. Step 4: Simplify right side
    509,030.70x = 117,500,200,424.06
  5. Step 5: Solve for x
    x = 117,500,200,424.06/509,030.70
  6. Step 6: Final answer
    x = 230,831.27

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1.5x scale

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.