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Finding the Fourth Proportional to 343,440.69, 473,941.10 and 190,454.21

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Solution

The fourth proportional to 343,440.69, 473,941.10 and 190,454.21 is: 262,822.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,440.69 : 473,941.10 = 190,454.21 : x
  2. Step 2: Convert to fraction form
    343,440.69/473,941.10 = 190,454.21/x
  3. Step 3: Cross multiply
    343,440.69x = 473,941.10 × 190,454.21
  4. Step 4: Simplify right side
    343,440.69x = 90,264,074,465.05
  5. Step 5: Solve for x
    x = 90,264,074,465.05/343,440.69
  6. Step 6: Final answer
    x = 262,822.89

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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.