Home / 495,189.20-742,783.80-140,205.08

Finding the Fourth Proportional to 495,189.20, 742,783.80 and 140,205.08

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Solution

The fourth proportional to 495,189.20, 742,783.80 and 140,205.08 is: 210,307.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,189.20 : 742,783.80 = 140,205.08 : x
  2. Step 2: Convert to fraction form
    495,189.20/742,783.80 = 140,205.08/x
  3. Step 3: Cross multiply
    495,189.20x = 742,783.80 × 140,205.08
  4. Step 4: Simplify right side
    495,189.20x = 104,142,062,101.70
  5. Step 5: Solve for x
    x = 104,142,062,101.70/495,189.20
  6. Step 6: Final answer
    x = 210,307.62

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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.