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Finding the Fourth Proportional to 291,389.99, 437,162.76 and 104,420.39

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Solution

The fourth proportional to 291,389.99, 437,162.76 and 104,420.39 is: 156,658.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,389.99 : 437,162.76 = 104,420.39 : x
  2. Step 2: Convert to fraction form
    291,389.99/437,162.76 = 104,420.39/x
  3. Step 3: Cross multiply
    291,389.99x = 437,162.76 × 104,420.39
  4. Step 4: Simplify right side
    291,389.99x = 45,648,703,706.86
  5. Step 5: Solve for x
    x = 45,648,703,706.86/291,389.99
  6. Step 6: Final answer
    x = 156,658.45

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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.