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Finding the Fourth Proportional to 343,377.39, 473,888.16 and 190,430.76

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Solution

The fourth proportional to 343,377.39, 473,888.16 and 190,430.76 is: 262,809.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,377.39 : 473,888.16 = 190,430.76 : x
  2. Step 2: Convert to fraction form
    343,377.39/473,888.16 = 190,430.76/x
  3. Step 3: Cross multiply
    343,377.39x = 473,888.16 × 190,430.76
  4. Step 4: Simplify right side
    343,377.39x = 90,242,882,463.80
  5. Step 5: Solve for x
    x = 90,242,882,463.80/343,377.39
  6. Step 6: Final answer
    x = 262,809.62

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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.