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Finding the Fourth Proportional to 341,393.64, 471,345.13 and 305,521.98

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Solution

The fourth proportional to 341,393.64, 471,345.13 and 305,521.98 is: 421,818.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,393.64 : 471,345.13 = 305,521.98 : x
  2. Step 2: Convert to fraction form
    341,393.64/471,345.13 = 305,521.98/x
  3. Step 3: Cross multiply
    341,393.64x = 471,345.13 × 305,521.98
  4. Step 4: Simplify right side
    341,393.64x = 144,006,294,276.76
  5. Step 5: Solve for x
    x = 144,006,294,276.76/341,393.64
  6. Step 6: Final answer
    x = 421,818.92

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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.