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Finding the Fourth Proportional to 354,484.96, 489,187.36 and 193,337.12

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Solution

The fourth proportional to 354,484.96, 489,187.36 and 193,337.12 is: 266,804.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,484.96 : 489,187.36 = 193,337.12 : x
  2. Step 2: Convert to fraction form
    354,484.96/489,187.36 = 193,337.12/x
  3. Step 3: Cross multiply
    354,484.96x = 489,187.36 × 193,337.12
  4. Step 4: Simplify right side
    354,484.96x = 94,578,075,322.80
  5. Step 5: Solve for x
    x = 94,578,075,322.80/354,484.96
  6. Step 6: Final answer
    x = 266,804.20

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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.