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Finding the Fourth Proportional to 233,418.40, 349,666.80 and 139,645.60

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Solution

The fourth proportional to 233,418.40, 349,666.80 and 139,645.60 is: 209,192.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    233,418.40 : 349,666.80 = 139,645.60 : x
  2. Step 2: Convert to fraction form
    233,418.40/349,666.80 = 139,645.60/x
  3. Step 3: Cross multiply
    233,418.40x = 349,666.80 × 139,645.60
  4. Step 4: Simplify right side
    233,418.40x = 48,829,430,086.08
  5. Step 5: Solve for x
    x = 48,829,430,086.08/233,418.40
  6. Step 6: Final answer
    x = 209,192.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.