Home / 305,510.40-458,081.51-137,000.25

Finding the Fourth Proportional to 305,510.40, 458,081.51 and 137,000.25

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Solution

The fourth proportional to 305,510.40, 458,081.51 and 137,000.25 is: 205,417.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,510.40 : 458,081.51 = 137,000.25 : x
  2. Step 2: Convert to fraction form
    305,510.40/458,081.51 = 137,000.25/x
  3. Step 3: Cross multiply
    305,510.40x = 458,081.51 × 137,000.25
  4. Step 4: Simplify right side
    305,510.40x = 62,757,280,705.38
  5. Step 5: Solve for x
    x = 62,757,280,705.38/305,510.40
  6. Step 6: Final answer
    x = 205,417.82

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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.