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Finding the Fourth Proportional to 277,303.55, 415,955.33 and 90,315.05

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Solution

The fourth proportional to 277,303.55, 415,955.33 and 90,315.05 is: 135,472.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,303.55 : 415,955.33 = 90,315.05 : x
  2. Step 2: Convert to fraction form
    277,303.55/415,955.33 = 90,315.05/x
  3. Step 3: Cross multiply
    277,303.55x = 415,955.33 × 90,315.05
  4. Step 4: Simplify right side
    277,303.55x = 37,567,023,895.36
  5. Step 5: Solve for x
    x = 37,567,023,895.36/277,303.55
  6. Step 6: Final answer
    x = 135,472.57

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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.