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Finding the Fourth Proportional to 210,888.72, 291,017.76 and 126,052.56

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Solution

The fourth proportional to 210,888.72, 291,017.76 and 126,052.56 is: 173,947.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,888.72 : 291,017.76 = 126,052.56 : x
  2. Step 2: Convert to fraction form
    210,888.72/291,017.76 = 126,052.56/x
  3. Step 3: Cross multiply
    210,888.72x = 291,017.76 × 126,052.56
  4. Step 4: Simplify right side
    210,888.72x = 36,683,533,653.47
  5. Step 5: Solve for x
    x = 36,683,533,653.47/210,888.72
  6. Step 6: Final answer
    x = 173,947.35

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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.