Home / 307,528.08-461,347.80-139,127.64

Finding the Fourth Proportional to 307,528.08, 461,347.80 and 139,127.64

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Solution

The fourth proportional to 307,528.08, 461,347.80 and 139,127.64 is: 208,716.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,528.08 : 461,347.80 = 139,127.64 : x
  2. Step 2: Convert to fraction form
    307,528.08/461,347.80 = 139,127.64/x
  3. Step 3: Cross multiply
    307,528.08x = 461,347.80 × 139,127.64
  4. Step 4: Simplify right side
    307,528.08x = 64,186,230,633.19
  5. Step 5: Solve for x
    x = 64,186,230,633.19/307,528.08
  6. Step 6: Final answer
    x = 208,716.65

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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.