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Finding the Fourth Proportional to 315,973.56, 474,154.80 and 286,444.20

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Solution

The fourth proportional to 315,973.56, 474,154.80 and 286,444.20 is: 429,842.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,973.56 : 474,154.80 = 286,444.20 : x
  2. Step 2: Convert to fraction form
    315,973.56/474,154.80 = 286,444.20/x
  3. Step 3: Cross multiply
    315,973.56x = 474,154.80 × 286,444.20
  4. Step 4: Simplify right side
    315,973.56x = 135,818,892,362.16
  5. Step 5: Solve for x
    x = 135,818,892,362.16/315,973.56
  6. Step 6: Final answer
    x = 429,842.59

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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.