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Finding the Fourth Proportional to 617,681.13, 926,596.62 and 218,240.16

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Solution

The fourth proportional to 617,681.13, 926,596.62 and 218,240.16 is: 327,386.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,681.13 : 926,596.62 = 218,240.16 : x
  2. Step 2: Convert to fraction form
    617,681.13/926,596.62 = 218,240.16/x
  3. Step 3: Cross multiply
    617,681.13x = 926,596.62 × 218,240.16
  4. Step 4: Simplify right side
    617,681.13x = 202,220,594,604.26
  5. Step 5: Solve for x
    x = 202,220,594,604.26/617,681.13
  6. Step 6: Final answer
    x = 327,386.71

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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.