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Finding the Fourth Proportional to 288,034.60, 432,051.90 and 242,415.40

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Solution

The fourth proportional to 288,034.60, 432,051.90 and 242,415.40 is: 363,623.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,034.60 : 432,051.90 = 242,415.40 : x
  2. Step 2: Convert to fraction form
    288,034.60/432,051.90 = 242,415.40/x
  3. Step 3: Cross multiply
    288,034.60x = 432,051.90 × 242,415.40
  4. Step 4: Simplify right side
    288,034.60x = 104,736,034,159.26
  5. Step 5: Solve for x
    x = 104,736,034,159.26/288,034.60
  6. Step 6: Final answer
    x = 363,623.10

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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.