Home / 380,415.55-524,989.28-210,649.67

Finding the Fourth Proportional to 380,415.55, 524,989.28 and 210,649.67

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Solution

The fourth proportional to 380,415.55, 524,989.28 and 210,649.67 is: 290,705.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,415.55 : 524,989.28 = 210,649.67 : x
  2. Step 2: Convert to fraction form
    380,415.55/524,989.28 = 210,649.67/x
  3. Step 3: Cross multiply
    380,415.55x = 524,989.28 × 210,649.67
  4. Step 4: Simplify right side
    380,415.55x = 110,588,817,532.29
  5. Step 5: Solve for x
    x = 110,588,817,532.29/380,415.55
  6. Step 6: Final answer
    x = 290,705.31

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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.