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Finding the Fourth Proportional to 346,702.60, 520,053.90 and 276,718.60

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Solution

The fourth proportional to 346,702.60, 520,053.90 and 276,718.60 is: 415,077.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,702.60 : 520,053.90 = 276,718.60 : x
  2. Step 2: Convert to fraction form
    346,702.60/520,053.90 = 276,718.60/x
  3. Step 3: Cross multiply
    346,702.60x = 520,053.90 × 276,718.60
  4. Step 4: Simplify right side
    346,702.60x = 143,908,587,132.54
  5. Step 5: Solve for x
    x = 143,908,587,132.54/346,702.60
  6. Step 6: Final answer
    x = 415,077.90

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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.