Home / 259,680.32-389,681.76-166,253.12

Finding the Fourth Proportional to 259,680.32, 389,681.76 and 166,253.12

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Solution

The fourth proportional to 259,680.32, 389,681.76 and 166,253.12 is: 249,482.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,680.32 : 389,681.76 = 166,253.12 : x
  2. Step 2: Convert to fraction form
    259,680.32/389,681.76 = 166,253.12/x
  3. Step 3: Cross multiply
    259,680.32x = 389,681.76 × 166,253.12
  4. Step 4: Simplify right side
    259,680.32x = 64,785,808,407.09
  5. Step 5: Solve for x
    x = 64,785,808,407.09/259,680.32
  6. Step 6: Final answer
    x = 249,482.94

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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.