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Finding the Fourth Proportional to 401,957.04, 554,587.08 and 258,800.04

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Solution

The fourth proportional to 401,957.04, 554,587.08 and 258,800.04 is: 357,070.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,957.04 : 554,587.08 = 258,800.04 : x
  2. Step 2: Convert to fraction form
    401,957.04/554,587.08 = 258,800.04/x
  3. Step 3: Cross multiply
    401,957.04x = 554,587.08 × 258,800.04
  4. Step 4: Simplify right side
    401,957.04x = 143,527,158,487.48
  5. Step 5: Solve for x
    x = 143,527,158,487.48/401,957.04
  6. Step 6: Final answer
    x = 357,070.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.