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Finding the Fourth Proportional to 245,335.40, 368,003.10 and 238,423.40

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Solution

The fourth proportional to 245,335.40, 368,003.10 and 238,423.40 is: 357,635.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,335.40 : 368,003.10 = 238,423.40 : x
  2. Step 2: Convert to fraction form
    245,335.40/368,003.10 = 238,423.40/x
  3. Step 3: Cross multiply
    245,335.40x = 368,003.10 × 238,423.40
  4. Step 4: Simplify right side
    245,335.40x = 87,740,550,312.54
  5. Step 5: Solve for x
    x = 87,740,550,312.54/245,335.40
  6. Step 6: Final answer
    x = 357,635.10

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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.