Home / 297,246.28-445,108.20-163,978.40

Finding the Fourth Proportional to 297,246.28, 445,108.20 and 163,978.40

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Solution

The fourth proportional to 297,246.28, 445,108.20 and 163,978.40 is: 245,547.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,246.28 : 445,108.20 = 163,978.40 : x
  2. Step 2: Convert to fraction form
    297,246.28/445,108.20 = 163,978.40/x
  3. Step 3: Cross multiply
    297,246.28x = 445,108.20 × 163,978.40
  4. Step 4: Simplify right side
    297,246.28x = 72,988,130,462.88
  5. Step 5: Solve for x
    x = 72,988,130,462.88/297,246.28
  6. Step 6: Final answer
    x = 245,547.67

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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.