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Finding the Fourth Proportional to 610,045.04, 915,189.72 and 210,700.40

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Solution

The fourth proportional to 610,045.04, 915,189.72 and 210,700.40 is: 316,092.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,045.04 : 915,189.72 = 210,700.40 : x
  2. Step 2: Convert to fraction form
    610,045.04/915,189.72 = 210,700.40/x
  3. Step 3: Cross multiply
    610,045.04x = 915,189.72 × 210,700.40
  4. Step 4: Simplify right side
    610,045.04x = 192,830,840,079.89
  5. Step 5: Solve for x
    x = 192,830,840,079.89/610,045.04
  6. Step 6: Final answer
    x = 316,092.79

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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.