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Finding the Fourth Proportional to 516,988.35, 775,482.81 and 162,030.03

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Solution

The fourth proportional to 516,988.35, 775,482.81 and 162,030.03 is: 243,045.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,988.35 : 775,482.81 = 162,030.03 : x
  2. Step 2: Convert to fraction form
    516,988.35/775,482.81 = 162,030.03/x
  3. Step 3: Cross multiply
    516,988.35x = 775,482.81 × 162,030.03
  4. Step 4: Simplify right side
    516,988.35x = 125,651,502,968.78
  5. Step 5: Solve for x
    x = 125,651,502,968.78/516,988.35
  6. Step 6: Final answer
    x = 243,045.13

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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.