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Finding the Fourth Proportional to 610,420.80, 915,616.80 and 167,188.80

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Solution

The fourth proportional to 610,420.80, 915,616.80 and 167,188.80 is: 250,779.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,420.80 : 915,616.80 = 167,188.80 : x
  2. Step 2: Convert to fraction form
    610,420.80/915,616.80 = 167,188.80/x
  3. Step 3: Cross multiply
    610,420.80x = 915,616.80 × 167,188.80
  4. Step 4: Simplify right side
    610,420.80x = 153,080,874,051.84
  5. Step 5: Solve for x
    x = 153,080,874,051.84/610,420.80
  6. Step 6: Final answer
    x = 250,779.26

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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.