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Finding the Fourth Proportional to 369,437.59, 509,823.11 and 208,291.53

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Solution

The fourth proportional to 369,437.59, 509,823.11 and 208,291.53 is: 287,441.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,437.59 : 509,823.11 = 208,291.53 : x
  2. Step 2: Convert to fraction form
    369,437.59/509,823.11 = 208,291.53/x
  3. Step 3: Cross multiply
    369,437.59x = 509,823.11 × 208,291.53
  4. Step 4: Simplify right side
    369,437.59x = 106,191,838,043.82
  5. Step 5: Solve for x
    x = 106,191,838,043.82/369,437.59
  6. Step 6: Final answer
    x = 287,441.89

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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.