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Finding the Fourth Proportional to 247,905.20, 348,000.40 and 247,905.20

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Solution

The fourth proportional to 247,905.20, 348,000.40 and 247,905.20 is: 348,000.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,905.20 : 348,000.40 = 247,905.20 : x
  2. Step 2: Convert to fraction form
    247,905.20/348,000.40 = 247,905.20/x
  3. Step 3: Cross multiply
    247,905.20x = 348,000.40 × 247,905.20
  4. Step 4: Simplify right side
    247,905.20x = 86,271,108,762.08
  5. Step 5: Solve for x
    x = 86,271,108,762.08/247,905.20
  6. Step 6: Final answer
    x = 348,000.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.