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Finding the Fourth Proportional to 401,482.08, 553,994.22 and 229,411.20

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Solution

The fourth proportional to 401,482.08, 553,994.22 and 229,411.20 is: 316,558.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,482.08 : 553,994.22 = 229,411.20 : x
  2. Step 2: Convert to fraction form
    401,482.08/553,994.22 = 229,411.20/x
  3. Step 3: Cross multiply
    401,482.08x = 553,994.22 × 229,411.20
  4. Step 4: Simplify right side
    401,482.08x = 127,092,478,803.26
  5. Step 5: Solve for x
    x = 127,092,478,803.26/401,482.08
  6. Step 6: Final answer
    x = 316,558.29

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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.