Home / 210,868.08-316,489.20-98,609.40

Finding the Fourth Proportional to 210,868.08, 316,489.20 and 98,609.40

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Solution

The fourth proportional to 210,868.08, 316,489.20 and 98,609.40 is: 148,001.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,868.08 : 316,489.20 = 98,609.40 : x
  2. Step 2: Convert to fraction form
    210,868.08/316,489.20 = 98,609.40/x
  3. Step 3: Cross multiply
    210,868.08x = 316,489.20 × 98,609.40
  4. Step 4: Simplify right side
    210,868.08x = 31,208,810,118.48
  5. Step 5: Solve for x
    x = 31,208,810,118.48/210,868.08
  6. Step 6: Final answer
    x = 148,001.59

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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.