Home / 280,341.36-386,855.64-153,014.16

Finding the Fourth Proportional to 280,341.36, 386,855.64 and 153,014.16

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Solution

The fourth proportional to 280,341.36, 386,855.64 and 153,014.16 is: 211,151.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,341.36 : 386,855.64 = 153,014.16 : x
  2. Step 2: Convert to fraction form
    280,341.36/386,855.64 = 153,014.16/x
  3. Step 3: Cross multiply
    280,341.36x = 386,855.64 × 153,014.16
  4. Step 4: Simplify right side
    280,341.36x = 59,194,390,795.86
  5. Step 5: Solve for x
    x = 59,194,390,795.86/280,341.36
  6. Step 6: Final answer
    x = 211,151.12

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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.