Home / 315,211.28-473,013.80-210,104.08

Finding the Fourth Proportional to 315,211.28, 473,013.80 and 210,104.08

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Solution

The fourth proportional to 315,211.28, 473,013.80 and 210,104.08 is: 315,287.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,211.28 : 473,013.80 = 210,104.08 : x
  2. Step 2: Convert to fraction form
    315,211.28/473,013.80 = 210,104.08/x
  3. Step 3: Cross multiply
    315,211.28x = 473,013.80 × 210,104.08
  4. Step 4: Simplify right side
    315,211.28x = 99,382,129,276.30
  5. Step 5: Solve for x
    x = 99,382,129,276.30/315,211.28
  6. Step 6: Final answer
    x = 315,287.35

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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.