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Finding the Fourth Proportional to 291,459.53, 437,011.19 and 139,703.04

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Solution

The fourth proportional to 291,459.53, 437,011.19 and 139,703.04 is: 209,469.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,459.53 : 437,011.19 = 139,703.04 : x
  2. Step 2: Convert to fraction form
    291,459.53/437,011.19 = 139,703.04/x
  3. Step 3: Cross multiply
    291,459.53x = 437,011.19 × 139,703.04
  4. Step 4: Simplify right side
    291,459.53x = 61,051,791,058.50
  5. Step 5: Solve for x
    x = 61,051,791,058.50/291,459.53
  6. Step 6: Final answer
    x = 209,469.19

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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.