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Finding the Fourth Proportional to 302,779.20, 417,835.29 and 168,643.20

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Solution

The fourth proportional to 302,779.20, 417,835.29 and 168,643.20 is: 232,727.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,779.20 : 417,835.29 = 168,643.20 : x
  2. Step 2: Convert to fraction form
    302,779.20/417,835.29 = 168,643.20/x
  3. Step 3: Cross multiply
    302,779.20x = 417,835.29 × 168,643.20
  4. Step 4: Simplify right side
    302,779.20x = 70,465,080,378.53
  5. Step 5: Solve for x
    x = 70,465,080,378.53/302,779.20
  6. Step 6: Final answer
    x = 232,727.61

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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.