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Finding the Fourth Proportional to 343,305, 473,788.80 and 190,358.40

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Solution

The fourth proportional to 343,305, 473,788.80 and 190,358.40 is: 262,710.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,305 : 473,788.80 = 190,358.40 : x
  2. Step 2: Convert to fraction form
    343,305/473,788.80 = 190,358.40/x
  3. Step 3: Cross multiply
    343,305x = 473,788.80 × 190,358.40
  4. Step 4: Simplify right side
    343,305x = 90,189,677,905.92
  5. Step 5: Solve for x
    x = 90,189,677,905.92/343,305
  6. Step 6: Final answer
    x = 262,710.06

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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.