Home / 390,150.08-585,225.13-109,667.33

Finding the Fourth Proportional to 390,150.08, 585,225.13 and 109,667.33

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Solution

The fourth proportional to 390,150.08, 585,225.13 and 109,667.33 is: 164,501.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,150.08 : 585,225.13 = 109,667.33 : x
  2. Step 2: Convert to fraction form
    390,150.08/585,225.13 = 109,667.33/x
  3. Step 3: Cross multiply
    390,150.08x = 585,225.13 × 109,667.33
  4. Step 4: Simplify right side
    390,150.08x = 64,180,076,907.67
  5. Step 5: Solve for x
    x = 64,180,076,907.67/390,150.08
  6. Step 6: Final answer
    x = 164,501.00

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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.