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Finding the Fourth Proportional to 210,526.88, 290,527.17 and 113,730.77

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Solution

The fourth proportional to 210,526.88, 290,527.17 and 113,730.77 is: 156,948.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,526.88 : 290,527.17 = 113,730.77 : x
  2. Step 2: Convert to fraction form
    210,526.88/290,527.17 = 113,730.77/x
  3. Step 3: Cross multiply
    210,526.88x = 290,527.17 × 113,730.77
  4. Step 4: Simplify right side
    210,526.88x = 33,041,878,750.02
  5. Step 5: Solve for x
    x = 33,041,878,750.02/210,526.88
  6. Step 6: Final answer
    x = 156,948.50

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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.