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Finding the Fourth Proportional to 369,894.80, 554,842.36 and 89,412.08

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Solution

The fourth proportional to 369,894.80, 554,842.36 and 89,412.08 is: 134,118.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,894.80 : 554,842.36 = 89,412.08 : x
  2. Step 2: Convert to fraction form
    369,894.80/554,842.36 = 89,412.08/x
  3. Step 3: Cross multiply
    369,894.80x = 554,842.36 × 89,412.08
  4. Step 4: Simplify right side
    369,894.80x = 49,609,609,479.71
  5. Step 5: Solve for x
    x = 49,609,609,479.71/369,894.80
  6. Step 6: Final answer
    x = 134,118.16

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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.