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Finding the Fourth Proportional to 339,271.64, 468,320.64 and 291,332.60

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Solution

The fourth proportional to 339,271.64, 468,320.64 and 291,332.60 is: 402,146.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,271.64 : 468,320.64 = 291,332.60 : x
  2. Step 2: Convert to fraction form
    339,271.64/468,320.64 = 291,332.60/x
  3. Step 3: Cross multiply
    339,271.64x = 468,320.64 × 291,332.60
  4. Step 4: Simplify right side
    339,271.64x = 136,437,069,684.86
  5. Step 5: Solve for x
    x = 136,437,069,684.86/339,271.64
  6. Step 6: Final answer
    x = 402,146.99

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1.5x scale

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.