Home / 305,931.60-458,739.82-137,307.37

Finding the Fourth Proportional to 305,931.60, 458,739.82 and 137,307.37

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Solution

The fourth proportional to 305,931.60, 458,739.82 and 137,307.37 is: 205,890.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,931.60 : 458,739.82 = 137,307.37 : x
  2. Step 2: Convert to fraction form
    305,931.60/458,739.82 = 137,307.37/x
  3. Step 3: Cross multiply
    305,931.60x = 458,739.82 × 137,307.37
  4. Step 4: Simplify right side
    305,931.60x = 62,988,355,904.77
  5. Step 5: Solve for x
    x = 62,988,355,904.77/305,931.60
  6. Step 6: Final answer
    x = 205,890.32

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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.