Home / 278,946.60-385,045.02-165,768

Finding the Fourth Proportional to 278,946.60, 385,045.02 and 165,768

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Solution

The fourth proportional to 278,946.60, 385,045.02 and 165,768 is: 228,818.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,946.60 : 385,045.02 = 165,768 : x
  2. Step 2: Convert to fraction form
    278,946.60/385,045.02 = 165,768/x
  3. Step 3: Cross multiply
    278,946.60x = 385,045.02 × 165,768
  4. Step 4: Simplify right side
    278,946.60x = 63,828,142,875.36
  5. Step 5: Solve for x
    x = 63,828,142,875.36/278,946.60
  6. Step 6: Final answer
    x = 228,818.50

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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.