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Finding the Fourth Proportional to 152,510.40, 210,538.80 and 101,553.30

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Solution

The fourth proportional to 152,510.40, 210,538.80 and 101,553.30 is: 140,193.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,510.40 : 210,538.80 = 101,553.30 : x
  2. Step 2: Convert to fraction form
    152,510.40/210,538.80 = 101,553.30/x
  3. Step 3: Cross multiply
    152,510.40x = 210,538.80 × 101,553.30
  4. Step 4: Simplify right side
    152,510.40x = 21,380,909,918.04
  5. Step 5: Solve for x
    x = 21,380,909,918.04/152,510.40
  6. Step 6: Final answer
    x = 140,193.13

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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.