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Finding the Fourth Proportional to 368,862.82, 553,368.81 and 155,631.26

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Solution

The fourth proportional to 368,862.82, 553,368.81 and 155,631.26 is: 233,478.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,862.82 : 553,368.81 = 155,631.26 : x
  2. Step 2: Convert to fraction form
    368,862.82/553,368.81 = 155,631.26/x
  3. Step 3: Cross multiply
    368,862.82x = 553,368.81 × 155,631.26
  4. Step 4: Simplify right side
    368,862.82x = 86,121,482,378.16
  5. Step 5: Solve for x
    x = 86,121,482,378.16/368,862.82
  6. Step 6: Final answer
    x = 233,478.35

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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.