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Finding the Fourth Proportional to 380,671.02, 525,303.38 and 208,554.74

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Solution

The fourth proportional to 380,671.02, 525,303.38 and 208,554.74 is: 287,793.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,671.02 : 525,303.38 = 208,554.74 : x
  2. Step 2: Convert to fraction form
    380,671.02/525,303.38 = 208,554.74/x
  3. Step 3: Cross multiply
    380,671.02x = 525,303.38 × 208,554.74
  4. Step 4: Simplify right side
    380,671.02x = 109,554,506,167.73
  5. Step 5: Solve for x
    x = 109,554,506,167.73/380,671.02
  6. Step 6: Final answer
    x = 287,793.13

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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.