Home / 384,854.08-531,099.40-215,088.20

Finding the Fourth Proportional to 384,854.08, 531,099.40 and 215,088.20

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Solution

The fourth proportional to 384,854.08, 531,099.40 and 215,088.20 is: 296,822.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,854.08 : 531,099.40 = 215,088.20 : x
  2. Step 2: Convert to fraction form
    384,854.08/531,099.40 = 215,088.20/x
  3. Step 3: Cross multiply
    384,854.08x = 531,099.40 × 215,088.20
  4. Step 4: Simplify right side
    384,854.08x = 114,233,213,967.08
  5. Step 5: Solve for x
    x = 114,233,213,967.08/384,854.08
  6. Step 6: Final answer
    x = 296,822.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.