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Finding the Fourth Proportional to 343,442.48, 473,905.48 and 190,478.84

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Solution

The fourth proportional to 343,442.48, 473,905.48 and 190,478.84 is: 262,835.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,442.48 : 473,905.48 = 190,478.84 : x
  2. Step 2: Convert to fraction form
    343,442.48/473,905.48 = 190,478.84/x
  3. Step 3: Cross multiply
    343,442.48x = 473,905.48 × 190,478.84
  4. Step 4: Simplify right side
    343,442.48x = 90,268,966,100.04
  5. Step 5: Solve for x
    x = 90,268,966,100.04/343,442.48
  6. Step 6: Final answer
    x = 262,835.76

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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.