Home / 385,316.20-578,075.10-148,666.60

Finding the Fourth Proportional to 385,316.20, 578,075.10 and 148,666.60

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Solution

The fourth proportional to 385,316.20, 578,075.10 and 148,666.60 is: 223,038.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,316.20 : 578,075.10 = 148,666.60 : x
  2. Step 2: Convert to fraction form
    385,316.20/578,075.10 = 148,666.60/x
  3. Step 3: Cross multiply
    385,316.20x = 578,075.10 × 148,666.60
  4. Step 4: Simplify right side
    385,316.20x = 85,940,459,661.66
  5. Step 5: Solve for x
    x = 85,940,459,661.66/385,316.20
  6. Step 6: Final answer
    x = 223,038.79

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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.