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Finding the Fourth Proportional to 207,075.52, 285,059.01 and 153,259.12

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Solution

The fourth proportional to 207,075.52, 285,059.01 and 153,259.12 is: 210,975.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,075.52 : 285,059.01 = 153,259.12 : x
  2. Step 2: Convert to fraction form
    207,075.52/285,059.01 = 153,259.12/x
  3. Step 3: Cross multiply
    207,075.52x = 285,059.01 × 153,259.12
  4. Step 4: Simplify right side
    207,075.52x = 43,687,893,020.67
  5. Step 5: Solve for x
    x = 43,687,893,020.67/207,075.52
  6. Step 6: Final answer
    x = 210,975.65

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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.