Home / 278,681.25-384,582.08-151,356.84

Finding the Fourth Proportional to 278,681.25, 384,582.08 and 151,356.84

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Solution

The fourth proportional to 278,681.25, 384,582.08 and 151,356.84 is: 208,873.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,681.25 : 384,582.08 = 151,356.84 : x
  2. Step 2: Convert to fraction form
    278,681.25/384,582.08 = 151,356.84/x
  3. Step 3: Cross multiply
    278,681.25x = 384,582.08 × 151,356.84
  4. Step 4: Simplify right side
    278,681.25x = 58,209,128,056.71
  5. Step 5: Solve for x
    x = 58,209,128,056.71/278,681.25
  6. Step 6: Final answer
    x = 208,873.50

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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.