Home / 291,725.60-437,588.40-70,109.60

Finding the Fourth Proportional to 291,725.60, 437,588.40 and 70,109.60

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Solution

The fourth proportional to 291,725.60, 437,588.40 and 70,109.60 is: 105,164.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,725.60 : 437,588.40 = 70,109.60 : x
  2. Step 2: Convert to fraction form
    291,725.60/437,588.40 = 70,109.60/x
  3. Step 3: Cross multiply
    291,725.60x = 437,588.40 × 70,109.60
  4. Step 4: Simplify right side
    291,725.60x = 30,679,147,688.64
  5. Step 5: Solve for x
    x = 30,679,147,688.64/291,725.60
  6. Step 6: Final answer
    x = 105,164.40

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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.