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Finding the Fourth Proportional to 280,271.84, 386,783.35 and 152,955.62

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Solution

The fourth proportional to 280,271.84, 386,783.35 and 152,955.62 is: 211,083.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,271.84 : 386,783.35 = 152,955.62 : x
  2. Step 2: Convert to fraction form
    280,271.84/386,783.35 = 152,955.62/x
  3. Step 3: Cross multiply
    280,271.84x = 386,783.35 × 152,955.62
  4. Step 4: Simplify right side
    280,271.84x = 59,160,684,788.62
  5. Step 5: Solve for x
    x = 59,160,684,788.62/280,271.84
  6. Step 6: Final answer
    x = 211,083.23

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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.