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Finding the Fourth Proportional to 289,038.60, 432,537.30 and 252,005.40

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Solution

The fourth proportional to 289,038.60, 432,537.30 and 252,005.40 is: 377,118.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,038.60 : 432,537.30 = 252,005.40 : x
  2. Step 2: Convert to fraction form
    289,038.60/432,537.30 = 252,005.40/x
  3. Step 3: Cross multiply
    289,038.60x = 432,537.30 × 252,005.40
  4. Step 4: Simplify right side
    289,038.60x = 109,001,735,301.42
  5. Step 5: Solve for x
    x = 109,001,735,301.42/289,038.60
  6. Step 6: Final answer
    x = 377,118.26

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1.5x scale

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.