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Finding the Fourth Proportional to 343,319, 473,808.12 and 190,372.40

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Solution

The fourth proportional to 343,319, 473,808.12 and 190,372.40 is: 262,729.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,319 : 473,808.12 = 190,372.40 : x
  2. Step 2: Convert to fraction form
    343,319/473,808.12 = 190,372.40/x
  3. Step 3: Cross multiply
    343,319x = 473,808.12 × 190,372.40
  4. Step 4: Simplify right side
    343,319x = 90,199,988,943.89
  5. Step 5: Solve for x
    x = 90,199,988,943.89/343,319
  6. Step 6: Final answer
    x = 262,729.38

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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.