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Finding the Fourth Proportional to 342,989.92, 473,313.36 and 190,018.72

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Solution

The fourth proportional to 342,989.92, 473,313.36 and 190,018.72 is: 262,218.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,989.92 : 473,313.36 = 190,018.72 : x
  2. Step 2: Convert to fraction form
    342,989.92/473,313.36 = 190,018.72/x
  3. Step 3: Cross multiply
    342,989.92x = 473,313.36 × 190,018.72
  4. Step 4: Simplify right side
    342,989.92x = 89,938,398,826.10
  5. Step 5: Solve for x
    x = 89,938,398,826.10/342,989.92
  6. Step 6: Final answer
    x = 262,218.78

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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.