Home / 305,870.10-458,586.45-137,252.40

Finding the Fourth Proportional to 305,870.10, 458,586.45 and 137,252.40

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Solution

The fourth proportional to 305,870.10, 458,586.45 and 137,252.40 is: 205,780.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,870.10 : 458,586.45 = 137,252.40 : x
  2. Step 2: Convert to fraction form
    305,870.10/458,586.45 = 137,252.40/x
  3. Step 3: Cross multiply
    305,870.10x = 458,586.45 × 137,252.40
  4. Step 4: Simplify right side
    305,870.10x = 62,942,090,869.98
  5. Step 5: Solve for x
    x = 62,942,090,869.98/305,870.10
  6. Step 6: Final answer
    x = 205,780.46

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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.