Home / 314,977.80-472,490.40-90,336.48

Finding the Fourth Proportional to 314,977.80, 472,490.40 and 90,336.48

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Solution

The fourth proportional to 314,977.80, 472,490.40 and 90,336.48 is: 135,511.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,977.80 : 472,490.40 = 90,336.48 : x
  2. Step 2: Convert to fraction form
    314,977.80/472,490.40 = 90,336.48/x
  3. Step 3: Cross multiply
    314,977.80x = 472,490.40 × 90,336.48
  4. Step 4: Simplify right side
    314,977.80x = 42,683,119,569.79
  5. Step 5: Solve for x
    x = 42,683,119,569.79/314,977.80
  6. Step 6: Final answer
    x = 135,511.52

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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.