Home / 305,521.40-458,098.02-137,011.28

Finding the Fourth Proportional to 305,521.40, 458,098.02 and 137,011.28

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Solution

The fourth proportional to 305,521.40, 458,098.02 and 137,011.28 is: 205,434.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,521.40 : 458,098.02 = 137,011.28 : x
  2. Step 2: Convert to fraction form
    305,521.40/458,098.02 = 137,011.28/x
  3. Step 3: Cross multiply
    305,521.40x = 458,098.02 × 137,011.28
  4. Step 4: Simplify right side
    305,521.40x = 62,764,596,085.67
  5. Step 5: Solve for x
    x = 62,764,596,085.67/305,521.40
  6. Step 6: Final answer
    x = 205,434.37

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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.