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Finding the Fourth Proportional to 358,775.20, 537,968.40 and 148,434.40

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Solution

The fourth proportional to 358,775.20, 537,968.40 and 148,434.40 is: 222,571.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,775.20 : 537,968.40 = 148,434.40 : x
  2. Step 2: Convert to fraction form
    358,775.20/537,968.40 = 148,434.40/x
  3. Step 3: Cross multiply
    358,775.20x = 537,968.40 × 148,434.40
  4. Step 4: Simplify right side
    358,775.20x = 79,853,016,672.96
  5. Step 5: Solve for x
    x = 79,853,016,672.96/358,775.20
  6. Step 6: Final answer
    x = 222,571.17

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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.