Home / 315,434.04-435,455.12-194,641.92

Finding the Fourth Proportional to 315,434.04, 435,455.12 and 194,641.92

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Solution

The fourth proportional to 315,434.04, 435,455.12 and 194,641.92 is: 268,702.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,434.04 : 435,455.12 = 194,641.92 : x
  2. Step 2: Convert to fraction form
    315,434.04/435,455.12 = 194,641.92/x
  3. Step 3: Cross multiply
    315,434.04x = 435,455.12 × 194,641.92
  4. Step 4: Simplify right side
    315,434.04x = 84,757,820,630.63
  5. Step 5: Solve for x
    x = 84,757,820,630.63/315,434.04
  6. Step 6: Final answer
    x = 268,702.20

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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.