Home / 364,277.64-502,406.10-305,909.40

Finding the Fourth Proportional to 364,277.64, 502,406.10 and 305,909.40

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Solution

The fourth proportional to 364,277.64, 502,406.10 and 305,909.40 is: 421,905.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,277.64 : 502,406.10 = 305,909.40 : x
  2. Step 2: Convert to fraction form
    364,277.64/502,406.10 = 305,909.40/x
  3. Step 3: Cross multiply
    364,277.64x = 502,406.10 × 305,909.40
  4. Step 4: Simplify right side
    364,277.64x = 153,690,748,607.34
  5. Step 5: Solve for x
    x = 153,690,748,607.34/364,277.64
  6. Step 6: Final answer
    x = 421,905.52

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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.