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Finding the Fourth Proportional to 535,425.20, 803,591.40 and 220,108.40

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Solution

The fourth proportional to 535,425.20, 803,591.40 and 220,108.40 is: 330,349.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,425.20 : 803,591.40 = 220,108.40 : x
  2. Step 2: Convert to fraction form
    535,425.20/803,591.40 = 220,108.40/x
  3. Step 3: Cross multiply
    535,425.20x = 803,591.40 × 220,108.40
  4. Step 4: Simplify right side
    535,425.20x = 176,877,217,307.76
  5. Step 5: Solve for x
    x = 176,877,217,307.76/535,425.20
  6. Step 6: Final answer
    x = 330,349.07

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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.