Home / 315,631.20-473,446.80-197,666.40

Finding the Fourth Proportional to 315,631.20, 473,446.80 and 197,666.40

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Solution

The fourth proportional to 315,631.20, 473,446.80 and 197,666.40 is: 296,499.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,631.20 : 473,446.80 = 197,666.40 : x
  2. Step 2: Convert to fraction form
    315,631.20/473,446.80 = 197,666.40/x
  3. Step 3: Cross multiply
    315,631.20x = 473,446.80 × 197,666.40
  4. Step 4: Simplify right side
    315,631.20x = 93,584,524,547.52
  5. Step 5: Solve for x
    x = 93,584,524,547.52/315,631.20
  6. Step 6: Final answer
    x = 296,499.60

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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.