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Finding the Fourth Proportional to 438,316, 604,876.80 and 237,112

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Solution

The fourth proportional to 438,316, 604,876.80 and 237,112 is: 327,214.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,316 : 604,876.80 = 237,112 : x
  2. Step 2: Convert to fraction form
    438,316/604,876.80 = 237,112/x
  3. Step 3: Cross multiply
    438,316x = 604,876.80 × 237,112
  4. Step 4: Simplify right side
    438,316x = 143,423,547,801.60
  5. Step 5: Solve for x
    x = 143,423,547,801.60/438,316
  6. Step 6: Final answer
    x = 327,214.95

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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.