Home / 280,209.16-420,436.96-147,058.22

Finding the Fourth Proportional to 280,209.16, 420,436.96 and 147,058.22

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Solution

The fourth proportional to 280,209.16, 420,436.96 and 147,058.22 is: 220,652.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,209.16 : 420,436.96 = 147,058.22 : x
  2. Step 2: Convert to fraction form
    280,209.16/420,436.96 = 147,058.22/x
  3. Step 3: Cross multiply
    280,209.16x = 420,436.96 × 147,058.22
  4. Step 4: Simplify right side
    280,209.16x = 61,828,710,959.81
  5. Step 5: Solve for x
    x = 61,828,710,959.81/280,209.16
  6. Step 6: Final answer
    x = 220,652.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.