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Finding the Fourth Proportional to 369,605.70, 510,055.72 and 208,460.39

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Solution

The fourth proportional to 369,605.70, 510,055.72 and 208,460.39 is: 287,675.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,605.70 : 510,055.72 = 208,460.39 : x
  2. Step 2: Convert to fraction form
    369,605.70/510,055.72 = 208,460.39/x
  3. Step 3: Cross multiply
    369,605.70x = 510,055.72 × 208,460.39
  4. Step 4: Simplify right side
    369,605.70x = 106,326,411,241.50
  5. Step 5: Solve for x
    x = 106,326,411,241.50/369,605.70
  6. Step 6: Final answer
    x = 287,675.25

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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.