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Finding the Fourth Proportional to 210,283.59, 315,347.47 and 75,326.63

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Solution

The fourth proportional to 210,283.59, 315,347.47 and 75,326.63 is: 112,962.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,283.59 : 315,347.47 = 75,326.63 : x
  2. Step 2: Convert to fraction form
    210,283.59/315,347.47 = 75,326.63/x
  3. Step 3: Cross multiply
    210,283.59x = 315,347.47 × 75,326.63
  4. Step 4: Simplify right side
    210,283.59x = 23,754,062,194.13
  5. Step 5: Solve for x
    x = 23,754,062,194.13/210,283.59
  6. Step 6: Final answer
    x = 112,962.03

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1.5x scale

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.