Home / 305,931.47-458,739.63-137,307.24

Finding the Fourth Proportional to 305,931.47, 458,739.63 and 137,307.24

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Solution

The fourth proportional to 305,931.47, 458,739.63 and 137,307.24 is: 205,890.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,931.47 : 458,739.63 = 137,307.24 : x
  2. Step 2: Convert to fraction form
    305,931.47/458,739.63 = 137,307.24/x
  3. Step 3: Cross multiply
    305,931.47x = 458,739.63 × 137,307.24
  4. Step 4: Simplify right side
    305,931.47x = 62,988,272,473.92
  5. Step 5: Solve for x
    x = 62,988,272,473.92/305,931.47
  6. Step 6: Final answer
    x = 205,890.14

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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.