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Finding the Fourth Proportional to 330,342.98, 495,547.20 and 105,646.95

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Solution

The fourth proportional to 330,342.98, 495,547.20 and 105,646.95 is: 158,480.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,342.98 : 495,547.20 = 105,646.95 : x
  2. Step 2: Convert to fraction form
    330,342.98/495,547.20 = 105,646.95/x
  3. Step 3: Cross multiply
    330,342.98x = 495,547.20 × 105,646.95
  4. Step 4: Simplify right side
    330,342.98x = 52,353,050,261.04
  5. Step 5: Solve for x
    x = 52,353,050,261.04/330,342.98
  6. Step 6: Final answer
    x = 158,480.89

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1.5x scale

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.