Home / 369,681.12-554,618.88-145,055.16

Finding the Fourth Proportional to 369,681.12, 554,618.88 and 145,055.16

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Solution

The fourth proportional to 369,681.12, 554,618.88 and 145,055.16 is: 217,620.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,681.12 : 554,618.88 = 145,055.16 : x
  2. Step 2: Convert to fraction form
    369,681.12/554,618.88 = 145,055.16/x
  3. Step 3: Cross multiply
    369,681.12x = 554,618.88 × 145,055.16
  4. Step 4: Simplify right side
    369,681.12x = 80,450,330,377.42
  5. Step 5: Solve for x
    x = 80,450,330,377.42/369,681.12
  6. Step 6: Final answer
    x = 217,620.88

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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.